Path Traversal in Fortinet Fortidlp
CVE-2025-53951
An Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability [CWE-22] in Fortinet FortiDLP Agent's Outlookproxy plugin for Windows 11.5.1 and 11.4.2 through 11.4.6 and 11.3.2 through 11.3.4 and 11.2.0 through 11.2.3 and 11.1.1 through 11.1.2 and 11.0.1 and 10.5.1 and 10.4.0, and 10.3.1 may allow an authenticated attacker to escalate their privilege to LocalService via sending a crafted request to a local listening port.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.002 (9.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 9.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Fortinet Fortidlp — versions 11.5.1, 11.4.2, 11.3.2
- Fortinet Fortidlp Agent
- Microsoft Windows
Weakness classification (CWE)
References
- https://fortiguard.fortinet.com/psirt/FG-IR-25-628 (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-53951?
- CVE-2025-53951 is a medium-severity vulnerability in Fortinet Fortidlp, classified under Path Traversal. CVSS score: 5.3/10. Published 2025-10-16.
- How severe is CVE-2025-53951?
- Medium severity. CVSS v3 base score is 5.3 out of 10.